In a 500 ml capacity vessel CO and Cl2 are mixed to form COCl2. At equilibrium, it contains 0.2 moles of COCl2 and 0.1 mole of each of CO and Cl2. The equilibrium constant Kc for the reaction CO + Cl2 COCl2 is
A.5
B.10✓ Correct
C.15
D.20
Explanation
The equilibrium reaction is- CO + Cl2 COCl2 2 c 2 c c [CoCl ] K = [Co](Cl ) 0.2 0.4 1 2 K = 0.1 0.1 0.2 0.2 1 2 1 2 K 10 x x